Mexico · 1991–2020

Best time to visit
Piedras Negras.

November leads for comfortable weather in Piedras Negras: typically 26.5°C by day, 9.5°C at night, with 19 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortNovember

Typical high26.5°C

Typical low9.5°C

Rain in November19 mm

Comfort

November

November · December · January

82climate match

Beach

February

February · April · March

68climate match

Outdoors

November

November · December · January

79climate match

The weakest month is June, scoring 52 against November’s 82 — 197 mm of rain falls, and days average 28.5°C, 5° above the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

7826.6° / 7.8°

Feb

7428.9° / 9.5°

Mar

6831.8° / 11.3°

Apr

6733.2° / 13.6°

May

6432.2° / 14.6°

Jun

5228.5° / 14.9°

Jul

5926.6° / 14.2°

Aug

5726.6° / 14.1°

Sep

5626.1° / 14.1°

Oct

7626.4° / 12°

Nov

8226.5° / 9.5°

Dec

8026.4° / 8.3°

Monthly climate evidence for Piedras Negras — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	26.6°C	7.8°C	9 mm	1	11 h 07	78	Good coverage
February	28.9°C	9.5°C	9 mm	1	11 h 30	74	Good coverage
March	31.8°C	11.3°C	7 mm	0.9	11 h 59	68	Good coverage
April	33.2°C	13.6°C	18 mm	2.2	12 h 33	67	Good coverage
May	32.2°C	14.6°C	69 mm	7.3	13 h 00	64	Good coverage
June	28.5°C	14.9°C	197 mm	14.3	13 h 15	52	Good coverage
July	26.6°C	14.2°C	182 mm	15.1	13 h 09	59	Good coverage
August	26.6°C	14.1°C	184 mm	16.1	12 h 46	57	Good coverage
September	26.1°C	14.1°C	202 mm	15.9	12 h 13	56	Good coverage
October	26.4°C	12°C	84 mm	7.1	11 h 41	76	Good coverage
November	26.5°C	9.5°C	19 mm	2	11 h 14	82	Good coverage
December	26.4°C	8.3°C	5 mm	0.6	11 h 01	80	Good coverage

Records at COATEPEQUITO, 1978–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	32.2°C18 Jan 2006	0.0°C18 Jan 2004	28 mm25 Jan 1992	82 mm1992 · driest 0 mm in 1993	31
February	35.6°C18 Feb 2006	0.0°C1 Feb 2004	59 mm4 Feb 2010	104 mm2010 · driest 0 mm in 2001	34
March	36.7°C17 Mar 2006	3.9°C3 Mar 2001	32 mm2 Mar 2001	40 mm2001 · driest 0 mm in 2000	34
April	38.3°C13 Apr 2009	4.4°C19 Apr 2004	49 mm7 Apr 1997	84 mm1997 · driest 0 mm in 1984	34
May	39.4°C2 May 2007	5.6°C7 May 2004	67 mm13 May 1991	162 mm1992 · driest 0 mm in 1993	33
June	38.3°C5 Jun 2005	6.7°C25 Jun 2004	73 mm18 Jun 1985	392 mm1981 · driest 73 mm in 1979	31
July	33.3°C2 Jul 2012	5.6°C14 Jul 2004	48 mm6 Jul 1991	255 mm1987 · driest 76 mm in 1986	31
August	32.8°C15 Aug 2009	5.6°C27 Aug 2004	55 mm18 Aug 1999	313 mm1999 · driest 83 mm in 1982	33
September	36.1°C15 Sep 2006	5.6°C3 Sep 2004	75 mm24 Sep 1980	340 mm2003 · driest 101 mm in 1978	34
October	31.1°C22 Oct 2005	4.4°C25 Oct 2004	67 mm10 Oct 2008	144 mm2009 · driest 0 mm in 2010	34
November	31.7°C14 Nov 2005	0.0°C23 Nov 2002	71 mm16 Nov 2006	113 mm2002 · driest 0 mm in 2008	34
December	31.7°C14 Dec 2005	0.0°C20 Dec 2003	26 mm30 Dec 1995	51 mm1995 · driest 0 mm in 1999	34

Typical days per month at COATEPEQUITO, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	26	4	<1
February	26	13	<1
March	31	26	<1
April	30	26	<1
May	31	25	3
June	27	10	7
July	26	3	7
August	26	2	7
September	23	<1	7
October	26	2	3
November	26	2	<1
December	26	2	<1

How often, not how much — every day in COATEPEQUITO’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	96%	2%	1%	1%	23.7–28.8°C
February	96%	4%	<1%	2%	25.7–30.6°C
March	97%	3%	<1%	<1%	28.1–33.4°C
April	92%	8%	2%	6%	29.3–35.4°C
May	77%	23%	8%	29%	28.9–34.2°C
June	53%	47%	23%	68%	24.7–30.7°C
July	51%	49%	21%	72%	23.8–28.4°C
August	50%	50%	20%	75%	23.8–28.4°C
September	48%	52%	23%	70%	23.4–27.8°C
October	79%	21%	8%	19%	24.4–27.6°C
November	94%	6%	2%	2%	24.3–28.0°C
December	98%	2%	<1%	<1%	24.3–27.7°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1979Each stripe is one year’s mean temperature against the 27-year average. Warmest: 2005. Coolest: 2004.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3521483
NOAA station: MXN00015248 · COATEPEQUITO
Station distance: 3.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 18.72°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from COATEPEQUITO is what differs

San Gaspar→El Terrero→La Puerta de Santiago→La Audiencia→El Zapote→Santa María la Asunción→

Or put two places side by side: Piedras Negras vs San Gaspar

Best time to visitPiedras Negras.

November

February

November

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Piedras Negras.

The whole year,
without the guesswork.

Nearby, measured,
and named.